Variant: on [1-8] mirror Figs8, 1c starting inwards (flows better on bar 9)
Square set plus 5M / 5W in middle face P with backs to 4c / 2c
In 17-32, the corners traditionally set one bar to the person you just passed, then one bar to the next person to pass. In a variant for [19-24] 1c turns BH in PdB.
After their second turn, 1c casts to 4pl on  as 4c steps up
Note: Cosh explicitly tells 1c to pass Lsh in [9-24]; however the Rsh pass is quite common, and nicknamed »Mairi's Divorce«.